The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jul. 14, 2009
Filed:
Sep. 06, 2007
Yuan-chung Lee, Tai-Nan, TW;
Yuan-Chung Lee, Tai-Nan, TW;
Mediatek Inc., Hsin-Chu, TW;
Abstract
The present invention discloses a variable-field motion detector having access to a plurality of video fields of an interlaced video signal for detecting a motion situation of an image area in the interlaced video signal. The variable-field motion detector includes: a plurality of pixel difference circuits each for computing a detection value according to the difference between the pixel values of a single pixel in two different video fields; a decision circuit coupled to the pixel difference circuits for determining the motion situation of the image area according to the detection values; and a field-number adjuster for adjusting the pixel difference circuits and/or the decision circuit to eliminate the effect of some video fields according to a detection number.